The model number of the GM alternator one desires for any practical
conversion is: 7127. That's an industry standard parts replacement number
any parts store can cross reference... it's often the same number across
different rebuilders.
Ah, but then you get to choose the CLOCK position for the terminals.
They
come at 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock. This means when
you are looking at the back of the alternator with the adjustment bolt hole
straight up and the pivot point on the bottom, the terminals on the back
are in one of these four positions. All work equally well and only make a
difference where you want the wires to exit the alternator itself. This is
handy in case you have a bracket or something else that might interfere
with it. If this alternator is going to be mounted on the port side (left)
of the engine, then choose 9 o'clock. If it's on the other side, go for 3
o'clock.
The numbers for those positions are configured as:
7127c
7127-3c
7127-6c
7127-9c
All these alternators are the standard 63 amperage models used on all GM
vehicles with internally regulated alternators in production from
1971-1979. In 1980, a lot of the alternators used on the front wheel drive
models (Citation, Skylark, Phoenix, Cavalier, etc) look identical but have
metric threads for the mountings. They are also much more expensive. The
vehicles with A/C often came with an 85 amp model that is overkill for a
Spitfire.
Average price for any of these units ranges from $20-$40 depending on
rebuild level.
-Vegaman Dan
-Ex-NAPA Counterman (electrical systems specialist for GM)
-66/69 Spitui!
________________________________________________________________________
| | Equinart Studios * Furry Artist * Model Railroader |
| Flinthoof |--------------------------------------------------------|
| *U* | MINTMINTMINTMINTMINTMINTMINTMINTMINTMINTMINTMINT!! |
| 1999 |--------------------------------------------------------|
| | ConiFur NorthWest '99- Furries in Seattle! |
| |--------------------------------------------------------|
| CONIFUR NW | Flinters@picarefy.com * www.picarefy.com/~flinthoof |
|_____________|________________________________________________________|
|